Current rheumatology reports · 2017
Innate Immune Responses and Osteoarthritis.
СтатьяОбзорНазвание и аннотация: Перевод в очереди
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Kalaitzoglou Evangelia, Griffin Timothy M, Humphrey Mary Beth
Аннотация
PURPOSE OF THE REVIEW: Osteoarthritis (OA) is a chronic, painful joint disease that affects approximately 40% of adults over 70 year. Age is the strongest predictor of OA, while obesity is considered the primary preventable risk factor for OA. Both conditions are associated with abnormal innate immune inflammatory responses that contribute to OA progression and are the focus of this review.
RECENT FINDINGS: Recent studies have identified risk factors for OA progression including increased innate immune responses secondary to aging-associated myeloid skewing, obesity-related myeloid activation, and synovial tissue hyperplasia with activated macrophage infiltration. Toll-like receptor (TLR)4-induced catabolic responses also play a significant role in OA. The complex interplay between obesity and aging-associated macrophage activation, pro-inflammatory cytokine production from TLR-driven responses, and adipokines leads to a vicious cycle of synovial hyperplasia, macrophage activation, cartilage catabolism, infrapatellar fat pad fibrosis, and joint destruction.
RECENT FINDINGS: Recent studies have identified risk factors for OA progression including increased innate immune responses secondary to aging-associated myeloid skewing, obesity-related myeloid activation, and synovial tissue hyperplasia with activated macrophage infiltration. Toll-like receptor (TLR)4-induced catabolic responses also play a significant role in OA. The complex interplay between obesity and aging-associated macrophage activation, pro-inflammatory cytokine production from TLR-driven responses, and adipokines leads to a vicious cycle of synovial hyperplasia, macrophage activation, cartilage catabolism, infrapatellar fat pad fibrosis, and joint destruction.